Ethyl 3-(bromomethyl)-4-methyl-2-(trifluoromethoxy)pyridine-6-acetate
Ethyl 3-(bromomethyl)-4-methyl-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-(bromomethyl)-2-methyl-6-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-(bromomethyl)-2-methyl-6-(trifluoromethoxy)pyridine-4-acetate